The tree will be 37 years old when it is 50 feet tall.
In the alphametic below, let A = 7, D = 5, M = 9, and T = 4. No word can begin with zero. What are the values of the other letters that will make this alphametic add up correctly?
ADD + IT + UP + MATH + IS = SHARP
We have:
40 + 1/2a = 3a
=> 40 = 3a - 1/2a
= 5/2 a
=> a = 40/5*2 = 16